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Zarrin [17]
3 years ago
8

Balance the following chemical equation: fill in the blank

Chemistry
2 answers:
Marrrta [24]3 years ago
5 0
4 Al + 3 O2 -> 2 Al2O3
fomenos3 years ago
4 0

Aluminium + Dioxygen = Ruby

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A paint chip is placed in ethanol and curls what type of paint is it
Licemer1 [7]

Answer:

it is probably acrylic or latex

Explanation:

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How many molecules are in 1 mol of the chemical equation shown above
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There's 6.022×10^23 particles in 1 mole of anything

like there is 1000 grams in 1 kilogram of anything
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3 years ago
During a storm, a tree fell over into a river. What might happen to this tree?
mina [271]
Break down in to tiny prices as the water hit the tree
6 0
3 years ago
Describe a Mesosaurus. ​
ElenaW [278]

Mesosaurus lived in freshwater lakes and ponds. Elongated and slim, it measured about 3.3 feet long. The skull and tail were both long and narrow, and the animal probably undulated through the water as it fed on small crustaceans and other prey with its jaws, which were full of long, thin, pointed teeth.

5 0
3 years ago
Night visin cameras are sensitive to energies around 2.21 x 10-19 J. What wavelength of electromagnetic radiation do they use?
defon

Answer:

8.99×10^-7m

Explanation:

The wavelength can be calculated using the expression below

E=hcλ

Where E= energy= 2.21 x 10^-19 J.

C= speed of light= 3x10^8 m/s

h= planks constant= 6.626 × 10^-34 m2 kg / s

E=hcλ

λ= E/(hc)

Substitute for the values

λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )

= 8.99×10^-7m

6 0
3 years ago
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